SPINNAKER 100N SAFE 4.0 | The Neoprene Revolution High-Performance Protection. Unmatched Flexibility. The SAFE 4.0 is not just another life jacket—it is the first of its kind to utilize an Inflatable Neoprene casing. This evolution in design ensures that your safety gear works with your body, providing a level of elasticity and protection that traditional nylon jackets simply cannot match. The Neoprene Advantage Neoprene isn't just for wetsuits. In the SAFE 4.0, this specialized material serves as a high-performance armor for the internal CO2 inflation system: Climate Stable: Protects the activator and CO2 cylinder from extreme temperature fluctuations. Chemical Resistant: Naturally inert to many oils, fuels, and marine chemicals. Crush-Proof: Highly resilient to impact and compression, ensuring the internal bladder remains pristine. Engineered for Total Mobility Designed with a Deep V-Shape front and an extra-low back neckline, the SAFE 4.0 fits seamlessly over everything from lightweight summer gear to bulky winter offshore foulies. Padded Mesh Interior: Ensures continuous airflow and prevents chafing against the neck or shoulders. Semi-Watertight "Burst" Zips: Features exclusive protected sliding hinges that stay closed against spray but burst open instantly upon inflation. Ergonomic Integration: Includes a standard under-leg crotch strap to prevent "ride-up" during water entry. Technical Breakdown Feature Benefit Buoyancy 100N Inflatable Outer Shell High-Elasticity Neoprene Closure System Burst-System Semi-Watertight Hinges Comfort Lining Breathable 3D Padded Mesh Safety Inclusions Integrated Crotch Strap Is the SAFE 4.0 Right for You? If you prioritize freedom of movement and durability in harsh environments, the SPINNAKER 100N is the premier choice. It is particularly suited for active sailors and deckhands who require gear that can withstand the rigors of heavy use while remaining comfortable for 12+ hours of wear.